function NewDate(str) {
  str = str.split('-');
  var date = new Date();
  date.setUTCFullYear(str[0], str[1] - 1, str[2]);
  date.setUTCHours(0, 0, 0, 0);
  return date;
}

export function showsectime() {
  var birthDay = NewDate("2020-08-31");
  var today = new Date();
  var timeold = today.getTime() - birthDay.getTime();

  var sectimeold = timeold / 1000
  var secondsold = Math.floor(sectimeold);
  var msPerDay = 24 * 60 * 60 * 1000;

  var e_daysold = timeold / msPerDay;
  var daysold = Math.floor(e_daysold);
  var e_hrsold = (daysold - e_daysold) * -24;
  var hrsold = Math.floor(e_hrsold);
  var e_minsold = (hrsold - e_hrsold) * -60;
  var minsold = Math.floor((hrsold - e_hrsold) * -60);

  var seconds = Math.floor((minsold - e_minsold) * -60).toString();
  document.getElementById("showsectime").innerHTML = "网站已安全运行 " + daysold + " 天 " + hrsold + " 小时 " + minsold + " 分 " + seconds + " 秒";
  setTimeout(showsectime, 1000);
}